Eh, TD and GIL like big breasts, so they gave the
Pale Carnations universe a somewhat larger average cup size than our own. The rest of the game is more than good enough to cut them some slack for not appreciating the perfect bust size.
It's not a bad look by any means, I just thought it wasn't quite right. Rosalind should project a little more menace because this is one of the few times where she really might rip the MC a new one if he tries anything that her daughter could hear. IMHO, obviously.
Come to think of it, I did have an error on the last save for my main run; fortunately I'm something of a save-rat so I just loaded the previous one and carried on. I think the problem had to do with saving during the reworked scene with Abel rather than at Victoria's later one because I didn't have a problem on any of my other save paths.
I'd say your odds are very good. Neither girl is interested in a formal commitment at this time. Mina is specifically interested in experimenting with the MC and Felicia, and Felicia is generally down for kinky things and seems to like Mina.
I don't think it would work long term, but a one-time threesome doesn't seem like much of a stretch before the end of the game.
Pale Carnations is in a league of its own; close is going to be a very relative term.
Still, if you like choice and corruption, you might want to try
Friends in Need. The writing is very good, the characters are very well presented, and the difference between being a nice guy and a monster is pronounced. The downside is that the game is more lopsided in favor of corruption content, and the story, while good, is a lot more slice of life than unfolding plot. Plus the dev has a hard time saying no to the girls he creates, so there are (IMHO) too many girls to split time between. It's still worth playing, though.